JP2990672B2 - Extruder die changing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage means for storing molds on shelves having storage parts at the top, bottom, left and right, a heating means having a plurality of heating furnaces for heating the molds, and extrusion molding. Transfer means for transferring the mold to a die carrier provided in a machine; transfer means for transferring the mold between the storage means, the mold heating means, and the transfer means. Means for exchanging a die of an extrusion molding machine provided with the means.

[0002]

2. Description of the Related Art A mold exchanging facility of such an extruder is intended to save labor for exchanging molds when a lot is changed. Conventionally, as disclosed in, for example, Japanese Patent Application Laid-Open No. 4-284917, a plurality of heating furnaces of the heating means are juxtaposed along the left and right sides of the shelf of the storage means along the left and right directions. The transfer means is configured to be able to execute die transfer via the die heating means and between the storage means and the transfer means.

[0003]

According to the conventional structure, the storage means and the mold heating means are long in the left-right direction of the shelf, making it difficult to reduce the installation area of the equipment and increasing the size of the entire equipment. In addition to the disadvantages, there is a disadvantage that the transport means becomes a large one having a long transport route and the equipment becomes expensive due to the expensive transport means, and a disadvantage that the transport efficiency of the mold is poor. Improvement was desired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to reduce the size of equipment, reduce the cost of equipment, and improve the transfer efficiency of a mold. It is to provide a mold changing equipment capable of performing the above.

[0005]

According to a first feature of the present invention, a plurality of heating furnaces of the heating means are provided at a side of a shelf of the storage means in a front-rear direction. ,
The present invention is characterized in that the transfer unit includes a transfer unit that is arranged between the shelves and the plurality of heating furnaces and that performs die transfer between the shelves and the plurality of heating furnaces.

A second characteristic configuration is that, in addition to the above-mentioned first characteristic configuration, the shelf can be moved from any side in the front-rear direction.
The mold is configured to be able to enter and exit, and the transport unit is a transport unit located between the shelf and the plurality of heating furnaces, the mold transport from the storage unit to the heating unit, and Executing a mold transfer from each of the storage unit and the heating unit to the transfer unit, and using an auxiliary transfer unit located on a side of the shelf opposite to a side where the heating unit exists, the transfer unit From the mold to the storage means. According to a third characteristic configuration, in addition to the second characteristic configuration, each of the transport unit and the auxiliary transport unit includes a traveling body that can travel along the left-right direction of the shelf, and a lifting / lowering operation performed on the traveling body. It is provided with a lifting platform freely mounted, and a pair of mold supports arranged side by side in the traveling direction of the traveling body and mounted on the lifting platform so as to be able to move back and forth in the width direction of the shelf.

[0007]

According to the first characteristic configuration, a plurality of heating furnaces of the mold heating means are juxtaposed along the left and right sides of the shelf in the front-rear width direction of the shelf in the storage means. Compactness in the left-right direction can be achieved. Moreover, since the transfer distance from the shelf of the storage means to the heating furnace of the mold heating means is shortened, a small and inexpensive transfer means having a small transfer path length can be used. The transfer efficiency can be improved.

[0008] According to the second characteristic configuration, by utilizing a transport section located between the shelf and the heating furnace and an auxiliary transport section located on the side of the shelf opposite to the side on which the mold heating means exists. The supply of the mold to the transfer means and the return from the transfer means to the storage means can be efficiently performed.

According to the third characteristic configuration, the supply of the mold to the transfer means and the return from the transfer means to the storage means can be efficiently performed. In other words, in general, a die that requires heating and a bolster that does not require heating are used as the mold, but the die is formed by one of a pair of mold supporting portions provided on the traveling body, and On the other hand, the mold transfer can be performed more efficiently while supporting the bolsters.

[0010]

According to the first characteristic configuration, the installation area of the equipment can be reduced, and the equipment can be reduced in cost by reducing the size and cost of the transfer means, and in addition, the transfer efficiency can be improved. Accordingly, the disadvantage of the above-described conventional configuration has been eliminated, and a mold exchanging facility that can be used more conveniently has been provided.

According to the second characteristic configuration, the supply of the mold to the transfer means and the return from the transfer means to the storage means can be efficiently performed by using the transfer section and the auxiliary transfer section. Mold exchange can be performed more efficiently.

According to the third characteristic configuration, the die and the bolster as the mold can be efficiently transported at once, and the running cost of the transport means can be reduced.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an extruder M having a die carrier 1 is provided. Then, a storage means A for storing the die 2 and the bolster 3 (see FIG. 6) as a mold, a heating means B for heating the die 2, and a transfer for transferring the die 2 and the bolster 3 to the die carrier 1. A transfer means D for transferring the dice 2 and the bolster 3 across the loading means C, the storage means A, the heating means B, and the transfer means C is provided, and a mold changing facility is configured. In the present embodiment, a relay point K provided with various transport equipment is provided as described later, and the transport means D and the transfer means C transport the die 2 and the bolster 3 to the relay point K. Configured to run. still,
As will be described later, the present invention can be implemented by changing the configuration of the transport equipment provided at the relay point K and omitting the transport equipment at the relay point K. Further, the extruder M is provided with two die carriers 1 and die carrier supply means H, as will be described in detail later. While one die carrier 1 is positioned on-line and extrusion is performed, the other die carrier 1 on off-line is
The dies 2 and the bolsters 3 to be used next are previously transferred in advance, thereby facilitating a setup change accompanying a lot change. In the figure, E is a billet storage space, F is a billet storage space E
Is a billet transport line for transporting the billet to the extruder M, and G is a billet heater.

Hereinafter, the mold changing equipment will be described. As shown in FIG. 5, the storage means A is constituted by a shelf 4 provided with storage portions 4a at the top, bottom, left and right. The dies 2 and the bolsters 3 are stored in a state of being stacked on a pallet 5 as shown in FIGS. 2 and 3.
The shelf 4 is configured so that the dice 2 and the bolster 3 can enter and exit from any side in the width direction of the shelf.

The pallet 5 will be further described with reference to FIG.
As shown in FIG. 3 and FIG.
A pair of front and rear mold contact portions 52 are provided horizontally. The mold contact part 52 is provided with a plurality of holes 54 for inserting the pins 53 for fixing the mold. Then, holes 5 at predetermined positions are set according to the sizes of the dies 2 and 3 to be loaded on the pallet 5.
Four pins 53 are inserted into 4. That is, the mold contact portions 5 are provided so that the molds 2 and 3 are inscribed in the four pins 53.
The dies 2 and 3 can be held in a predetermined loading posture by being stacked on the stack 2.

The heating means B has a plurality of heating furnaces 6 for heating the dies 2. These heating furnaces 6 are juxtaposed in the left-right direction on the sides of the shelf 4 of the storage means A in the front-rear width direction. The transfer means D includes a shelf 4 and a plurality of heating furnaces 6.
And an auxiliary transport section D2 located on the side of the shelf 4 opposite to the side where the heating means B is present. The transport unit D1 transports the mold from the storage unit A to the heating unit B, and stores the mold in the storage unit A and the heating unit B.
Is carried out from each of them to the relay point K. In addition, the auxiliary transport unit D2 is configured to execute die transport from the relay point K to the storage unit A. Each of the transport section D1 and the auxiliary transport section D2 is generally called a stacker crane, and as shown in FIGS.
A lifting platform 8 movably mounted on the traveling body 7, and a pair of mold supports 9 arranged side by side in the traveling direction of the traveling body 7 so as to be able to move back and forth in the longitudinal direction of the shelf on the lifting platform 8. It is provided with. Note that in FIG. 1, reference numeral 10 denotes a connection between the storage means A and a larger-scale preliminary storage means (not shown).
It is a self-propelled carriage that transports the dice 2 and the bolster 3.

At the relay point K, as shown in FIG.
A pair of receiving trays 11A, 1A, 1A, 1B supporting the dies 2 and the bolsters 3 supplied from the transport section D1, respectively.
1B, a pair of supply trucks 12A, 12B for individually transporting the dies 2 and the bolsters 3 supported by the receiving trays 11A, 11B, and the supply trucks 12A, 12B.
A first relay receiving tray 1 for receiving the dies 2 and the bolster 3 from the transfer device B and relaying the dies to the transfer means C;
3A, 13B, a traverse carriage 14 for laterally transporting the pair of pallets 5 after the dice 2 and the bolster 3 are transferred by the transfer means C, and a pair of pallets 5 from the traverse carriage 14 Relay stand 15 for receiving and supporting the
A, 15B, and the second relay receiving trays 15A, 15B
After the dies 2 and the bolsters 3 have been returned to the pair of pallets 5 supported by
A pair of return carts 16A and 16B for transporting the dice 2 and the bolster 3 separately, and the pair of return carts 16
A and 17B, return intermediary carriers 17A and 17B for receiving the dies 2 and the bolsters 3 from the A and 16B, a traverse carriage 18 for traversing the dies 2 and the bolsters 3 supported by them, and a traverse cart 18 for the return There are provided return receiving trays 19A and 19B for receiving the dies 2 and the bolsters 3 from the U.S.A. and supporting the dies 2 and the bolsters 3 for relaying the auxiliary transport section D2. As shown in FIGS. 7 and 8, each of the supply carts 12A and 12B and the return carts 16A and 16B is provided with a load supporting portion n which can be moved up and down and moved back and forth in the vehicle longitudinal direction. , And travels along the guide rail L1. As shown in FIG. 9, the traverse carriage 14 and the return traverse carriage 18 each include a load supporting portion m which can be moved up and down in accordance with expansion and contraction of a fluid pressure cylinder 14a. It is configured to travel along L2. Next, the transfer means C will be described. As shown in FIGS. 10 and 11, a frame 22 that is movable along a guide rail 21 provided on a base frame 20 is provided. As shown in FIG. 12, the frame body 22 is provided with a pinion 23b meshing with a rack 23a provided on the base frame 20, and an electric motor 24 for driving and rotating the pinion 23b. In the frame body 22,
As shown in FIG. 13, a pair of rails 25 is provided in a direction orthogonal to the moving direction of the frame body 22, and an article support portion 26 that is movable along the rails 25 is provided. The article support portion 26 includes a rack 27a provided on the frame 22.
A pinion 27b that meshes with the electric motor 28 and an electric motor 28 that drives and rotates the pinion 27b are provided. The article support section 26 is provided with a hanger arm 29 that is configured to be able to move up and down and to be opened and closed so as to attach and detach an object to be conveyed. In the figure, reference numeral 30 denotes an air cylinder for raising and lowering the hanger arm 29.

The set position P below the article support portion 26
Set base 31 for setting dice 2 and bolster 3 to 1
And a dividing table 32 for dividing the used die 2 and the bolster 3 returned from the extruder M at the separation position P2. The set table 31
As shown in FIGS. 14 and 15, a die receiving frame 31b and a bolster receiving frame 31c are provided, each of which is movable along a pair of rails 31a. Then, the dies 2 and the bolster 3 are supplied in a state where the die receiving frame 31b and the bolster receiving frame 31c are separated from each other.
1b and the bolster receiving frame 31c can be set by moving them closer to each other. 31d, 3 in the figure
1e is a cylinder for moving the receiving frames 31b and 31c. On the other hand, the dividing table 32 is composed of a pair of rails 32a.
Are provided with a die receiving frame 32b and a bolster receiving frame 32c, each of which can move freely along the axis. Then, the die 2 and the bolster 3 are supplied from the extruder M in a state where the die receiving frame 32b and the bolster receiving frame 32c are close to each other, and then the die receiving frame 32b and the bolster receiving frame 32c are separated from each other by being separated from each other. I can do it. In the figure, 32d and 32e are motors for moving the receiving frames 32b and 32c.

The procedure for transferring the die 2 and the bolster 3 in the transfer means C is as follows. When the dies 2 and the bolsters 3 are transferred from the first relay receiving trays 13A and 13B to the extruder M, (1) the hanger arm 29 is lowered and the dies are transferred from the first relay receiving trays 13A and 13B. 2 and the bolster 3 are received and supplied to the set table 31. (2) Receive the set die 2 and bolster 3,
It is moved from the set position P1 to a transfer position P3 described later. (3) The hanger arm 29 is lowered, and the die 2 and the bolster 3 are transferred to the empty die carrier 1 at the transfer position P3. When the dies 2 and the bolsters 3 are returned from the extruder M to the pair of pallets 5 supported by the second relay receiving trays 15A and 15B, the above-described path may be substantially reversed. , Instead of the setting table 31, the data passes through the division table 32.

Next, the die carrier supply means H provided in the extruder M will be briefly described. 16 to 1
As shown in FIG. 8, the holding member 3 is movable on the off-line of the extruder M in the direction along the billet extrusion direction.
5 are provided. The holding member 35 is configured to be able to position and hold the two die carriers 1 and to move each of the die carriers 1 to a transfer location P3 and a retreat location P4. Then, the transfer means C transfers the set dies 2 and bolsters 3 to the vacant die carrier 1 at the transfer position P3. In the figure, reference numeral 36 denotes an air cylinder for driving the holding member 35 to move. A locking member 37 is provided which is movable in a direction intersecting the billet pushing direction. With the locking member 37 moved to the off-line side, the holding member 35 is driven to move the die carrier 1 to the transfer position P3 and the retreating position P4, so that the die carrier 1 and the locking member 37 are moved. Are configured to be freely engaged and disengaged. Then, by moving the locking member 37 while the die carrier 1 is locked to the locking member 37, the die carrier 1 can be moved to the transfer position P3 which is offline and online. I have.

The procedure for exchanging the die 2 and the bolster 3 in the extruder M is as follows. (1) The die 2 and the bolster 3 to be used next are transferred to the vacant die carrier 1 at the transfer position P3 in advance, and the die carrier 1 is retracted to the retracted position P4. (2) At the time of setup change, first, the die carrier 1 in the seated state in which the used dice 2 and the bolster 3 are loaded is moved from online to the transfer position P3. (3) Next, the die carrier 1 on which the dies 2 and the bolsters 3 to be used are loaded is moved to the transfer position P3. (4) The die carrier 1 is moved on-line and used for extrusion molding. (5) On the other hand, the die carrier 1 on which the used dies 2 and the bolsters 3 are loaded is moved to the transfer position P3 again, and the dies 2 and the bolsters 3 are separated by the transfer means C.
Transfer to

Next, a procedure for exchanging the dies 2 and the bolsters 3 in the mold exchanging equipment of the extrusion molding machine will be described with reference to FIG. First, a predetermined die 2 and bolster 3 are unloaded and supplied to the transfer means C. The die 2 is supplied after being heated in the heating furnace 6. After being set on the setting table 31, the transfer means C transfers the die carrier 1 to an empty seat carrier 1 which is offline. Then, when the lot is changed, the die carrier 1 is moved on-line and used for extrusion. Used die 2 and bolster 3 are divided
After separation in step 2, each is stored in a predetermined shelf.

[Alternative Embodiment] In the above embodiment, the die 2 and the bolster 3 correspond to the mold, but the present invention can be applied to the case where only the die 2 corresponds. As shown in FIG. 20, when the transport unit D includes the transport unit D1 and the auxiliary transport unit D2, the die transfer between the transport unit D and the transfer unit C may be performed as follows. good. That is, as described in the above-described embodiment, the pair of receiving cradles 11A and 11B for separately supporting the dice 2 and the bolster 3 supplied from the transport unit D1, respectively, and the pair of receiving cradles 11A and 11B are supported. A pair of supply carts 12A and 12B for separately transporting the dies 2 and the bolsters 3, and the dies 2 and the bolsters 3 from the supply carts 12A and 12B are received and supported for relaying to the transfer means C. The first relay receiving trays 13A and 13B and the transfer means C
And a pair of pallets 5 after the bolster 3 is transferred
Trolley 14 for traversing the trolley and the traverse trolley 1
The second pallet 5 is provided with second relay receiving trays 15A and 15B for receiving and supporting the pair of pallets 5 from the pallet 4. The pair of returning trucks 16A and 16B, the returning relay loading platforms 17A and 17B, and the returning receiving tray 19A are provided. , 19B are omitted. Then, after the dies 2 and the bolsters 3 are returned by the transfer means C to the pair of pallets 5 supported by the second relay load receivers 15A, 15B, the second relay load receivers 15A, 15B. The dies 2 and the bolsters 3 supported by the above may be transported by the auxiliary transport section D2.

In the above embodiment, the conveying means D is
1 and the auxiliary transport section D2, but may be configured to include only the transport section D1 as shown in FIG. In this embodiment, supply pallets 60A and 60B for receiving the dice 2 and the bolster 3 from the transport section D1 and supporting the dies 2 and bolsters 3 for relay to the transfer means C;
Dice 2 and Bolster 3 from
Returning receiving pallets 61A, 6 supported for relaying to 1
1B. The transfer means C is configured in the same manner as in the above-described embodiment. Therefore, the transport section D1 places the dies 2 and the bolsters 3 on the supply receiving tables 60A and 60B.
After the dies 2 and the bolsters 3 have been transported by the transfer means C, the pair of pallets 5 are transferred to the return receiving tray 61.
A, 61B. Then, the dies 2 are transferred from the transfer means C to the pair of pallets 5 of the return receiving trays 61A and 61B.
And after the bolster 3 is returned, the transport section D1
Transports the dies 2 and the bolsters 3 to the storage means A.

Further, as described above, the transport unit D1
In the form of providing only
A pair of pallets 5 to be supported by the relay receiving trays 62A and 62B is provided with relay receiving trays 62A and 62B for the transport unit D1. Take out bolster 3 and
You may make it return.

In addition, the specific configuration of each unit required when practicing the present invention can be variously changed in accordance with the use situation and the like.

[0027] In the claims, reference numerals are provided for the purpose of facilitating the object of the drawings, but the present invention is not limited to the configuration of the attached drawings.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a mold changing facility.

FIG. 2 is a perspective view of a pallet.

FIG. 3 is a partially cutaway side view of a pallet.

FIG. 4 is a side view of the conveying means.

FIG. 5 is a front view of the conveying means.

FIG. 6 is a schematic plan view of a relay point.

FIG. 7 is a side view of a supply cart.

FIG. 8 is a front view of a supply cart.

FIG. 9 is a side view of a traverse cart.

FIG. 10 is a side view of the transfer means.

FIG. 11 is a plan view of a transfer unit.

FIG. 12 is a partially cutaway front view of a main part of the transfer means.

FIG. 13 is a partially cutaway side view of a main part of the transfer means.

FIG. 14 is a partially cutaway side view of the set table and the split table.

FIG. 15 is a partially cutaway plan view of the set table and the split table.

FIG. 16 is a side view of an essential part of the die carrier supply means with a part cutaway.

FIG. 17 is a longitudinal sectional side view of an extrusion molding machine.

FIG. 18 is a front view of a main part of a die carrier supply unit.

FIG. 19 is an explanatory diagram showing a mold replacement procedure.

FIG. 20 is a schematic plan view of another embodiment.

FIG. 21 is a schematic plan view of another embodiment.

FIG. 22 is a schematic plan view of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Die carrier 2, 3 Die 4 Shelf 4a Storage part 6 Heating furnace 7 Traveling body 8 Elevating stand 9 Die support part A Storage means B Heating means C Transfer means D Transport means D1 Transport part D2 Auxiliary transport part

Claims (3)

(57) [Claims] 1. A storage means (A) for storing dies (2) and (3) on shelves (4) provided with storage portions (4a) at the top, bottom, left and right, and heating the dies (2). A heating means (B) having a plurality of heating furnaces (6) and a transfer for transferring the dies (2) and (3) to a die carrier (1) provided in an extruder (M). Transport means for transporting the dies (2) and (3) between the loading means (C), the storage means (A), the heating means (B), and the transfer means (C) (D) and a mold exchanging equipment of an extrusion molding machine, wherein the plurality of heating furnaces (6) of the heating means (B) are provided by the storage means.
(A) side-by-side in the front-rear width direction of the shelf (4), along the shelf left-right direction, the transporting means (D) includes the shelf (4) and the plurality of heating furnaces.
(6) A mold exchanging equipment for an extrusion molding machine, which is provided with a transfer section (D1) for transferring a mold positioned between the mold exchanging apparatus and the transfer section. 2. The shelf (4) is configured so that the molds (2) and (3) can enter and exit from any side in the front-rear width direction. In the transfer section (D1) located between the shelf (4) and the plurality of heating furnaces (6), the storage section (A) is used to
(B), and transfer of the mold from each of the storage means (A) and the heating means (B) to the transfer means (C). In the auxiliary transport section (D2) located on the side opposite to the side where the heating means (B) exists, the transfer means
The die changing equipment of an extrusion molding machine according to claim 1, wherein the die is transferred from (C) to said storage means (A). 3. The transport section (D1) and the auxiliary transport section (D2).
Are respectively a traveling body (7) that can travel along the left-right direction of the shelf (4), an elevator (8) that is mounted on the traveling body (7) so as to be able to move up and down, and the traveling body (7). 3. The extrusion molding according to claim 2, further comprising: a pair of mold supporting portions (9) provided on the lifting platform (8) so as to be able to move back and forth in the width direction of the shelf. Mold change equipment for machine.